Add -e DATABASE_URL in ci step

Author: tomvothecoder

.github/workflows/backend-ci.yml

@@ -55,7 +55,7 @@ jobs:
         run: docker-compose -f docker-compose.yml up -d
 
       - name: Run Django Tests
-        run: docker-compose -f docker-compose.yml exec -T django pytest
+        run: docker-compose -f docker-compose.yml exec -e DATABASE_URL=${DATABASE_URL} -T django pytest
 
       - name: Tear down the Stack
         run: docker-compose down